McCulloch SUPERLITE 4528 Operator's Manual page 6

3. Release the throttle trigger lockout and make sure
that the throttle trigger is locked at idle speed
position.
4. Start the engine and apply full throttle.
5. Release the throttle trigger and make sure that the
blades stop fully.
WARNING:
when the throttle trigger is in the idle
speed position, adjust the idle speed.
Refer to
page 11 .
To do a check of the stop switch
1. Start the engine.
2. Push the stop switch to the stop position and make
sure that the engine stops.
WARNING:
automatically goes back to start position. To
prevent accidental start, remove the spark
plug cap from the spark plug when you
assemble or do maintenance on the product.
To do a check of the hand guard
The hand guard prevents injuries from the blades.
1. Stop the engine.
2. Make sure that the hand guard is attached correctly.
3. Examine the hand guard for damages.
To do a check of the vibration damping system
The vibration damping system decreases vibration in
the handles. The vibration damping units operate as a
separation between the product body and the handle
unit.
1. Do a visual check for deformation and damage.
6
If the blades move
To adjust the idle speed on
The stop switch
2. Make sure that the vibration damping units are
correctly attached.
To do a check of the muffler
WARNING:
without a muffler or a defective muffler. A
defective muffler can increase the noise
level and the risk of fire. Do not use the
product without, or with a broken, spark
arrester screen. The spark arrester screen
must be replaced if it is damaged.
WARNING:
spark arrester can contain carcinogenic
combustion particles. Use protective gloves
and do maintenance in a well-ventilated
environment to avoid skin contact and
inhalation of carcinogenic particles. Do not
use pressurized air to clean the spark
arrester. Use a wire brush and do the brush
movement away from your body when you
clean the spark arrester.
WARNING:
hot during and after operation, also at idle
speed.
CAUTION:
is frequently blocked it can be a sign that
performance of the catalytic converter is
decreased. Turn to your servicing dealer
to examine the muffler. A blocked spark
arrester screen will cause overheating and
result in damage to the cylinder and piston.
WARNING:
muffler contain chemicals that can cause
cancer. Be careful not to touch these
elements if the muffler is damaged.
Do not operate the product
A used muffler and
The mufflers become very
If the spark arrester screen
The inner surfaces of the
1255 - 003 - 10.03.2022